Inking device for printing-machines.



J. CARRELET I L. D. DE LONLAY.

INKING DEylCE FOR PRINTING MACHINES.

APPLICATION FILEDocT. Io. 1913.

1,167,268. 'Patented 131111916.

COLUMBIA PLANOGRAPH CO..WASHLNUTQN. Dnc.

UTED. STATE@ PATENT FFllCF.

JEAN GARRELET .AND LAURENT DICK :DE LONLAY, OF PARIS, FRANCE.

INKING DEVICE FOR PRINTING-MACHINES.

Application filed October 10, 1913.

To aZZ whom t may concern:

Be it known that we, JEAN CAnRELnr and .LAURENT 4Dion DE Lonnar,citizens of the French Republic, and residing at No. 144 Rue Montmartre,in Paris, France, gentlemen, have invented certain new and usefulImprovements in and Relating to lnking Devices for Printing-Machines, ofwhich the following is a complete specilication.

This invention has for its object devices to enable impressions to betaken in quick drying inks and colors.

The processes of impression hitherto used consist, as a rule, in layinginks or colors, more or less oleaginous on a block or plate and thentransferring the block thus'inked to the paper, stuff or other substanceto be printed. These processes of impression by transference of the inkor color, `however rapidly they can be executed in practice, do notallow the use of inks or colors which .dry rapidly, because during thepassage rate.

This invention obviates these inconveniences and consists in forcing inkor color under pressure through an ink reservoir made of a poroussubstance which constitutes at the same time the support of a printingblock or plate with openings, made of a comparatively non-poroussubstance applied directly to the ink reservoir in such a way that thepassage of the ink or color to the printing block or plate takes placeto the exclusion of air and that it thus becomes possible to employ inksand colors which dry rapidly.

In the annexed drawing: Figure l shows a porous cylinder employed incarrying out the invention. Fig. 2 is a view ofthe whole of a printingmachine furnished with cylinders as in Fig. 1. .Fig 3 is a detail view,with a portion removed, of a cylinder being put into position or takenout. Figs. el and 5 are two views in section on a larger scale of thedevice for conducting ink into the porous cylinder carrying the block orplate.

Specication of Letters Patent.

Patented dan. d, i916.

serial No. 794,417.

In carrying out the invention a cylinder c 1s used, Fig. l, made of aporous substance, the exterior surface of which cylinder carries theblock or plate c1. The latter consists of a bed of comparativelynonporous material, for example a thin plate of metal applied to thecylinder or support a by electro-type or other known means. On thisnon-porous bed is impressed or engraved or transferred by known meansthe composition, design or other matter to be reproduced in such a wayas to obtain a block or plate pierced with openings. Finally theinterior space o of the cylinderl or support c contains the ink or colorunder pressure. lt is at once understood that the ink or color is forcedby the pressure, firstly through the porous substance of the cylinder orsupport a, then through the openings in the block or plate into directContact with the paper, stuff or other substance to be printed.

With this process and this device it is evident that the cylinder ccombines the threefold function of ink reservoir, distributer and inkerof the block or plate al, so that tlepdrnting machine s considerablysimp 1 e As the passage of ink or color is effected without exposure tothe air it becomes possible to use inks and colors of a very fluidnature and capable of drying quickly, the advantage of which is that itallows the speed of pulling off to be considerably increased.

If Figs. 2 to 5, showing a complete Inachine, are examined the block orplate carrying cylinders are seen at a mounted for example, four to amachine. At b is the gearing train of the ordinary type whichactuatesthe machine and at c a reservoir of ink, dye or color underpressure feeding the cylinders a.

Fig. 3 shows that the porous cylinders a are first of all mounted on asleeve Z or support sliding on the shaft f. This sleeve is terminated bya collar c which supports the cylinder a, thus leaving between thislatter and its support an annular space. rlhe key may be on the shaftand the groove on the sleeve. A longitudinal groove g in the shaft f anda key g situated in the interior of fl trunnion z' carrying one of thegear wheels Z).

The ink coming from the reservoir c under pressure through the pipe jreaches, after passing through a revolving joint 7c of ordinaryconstruction, an axial passage/m in the trunnion 'a' and subsequently aradial passage a in the headh. An important part of this machine is thedevice establishing communication between this passage a and the annularspace 0 which exists between the porous cylinder a and its sleevesupport (Z and cutting off this communication when necessary. Thisdevice comprises a lantern valve y) having apertures y and mountedtoslide in .a passage r of the head it (see lfig. 3). This valve issubjected to the action of a spring s which constantly tends to push itoutwardly pressing an elastic iitting z5 projecting on the valve againstthe part u of the head it forming the seat for the fitting t. Theelastic fitting t may be replaced by a conical joint. An analogousarrangement exists on the sleeve d comprising also a valve p, a spiings, a fitting t and the other parties. At the external extremity of eachvalve p is also provided an elastic fitting or gasket u as shown in Fig.3. Y

When the sleeve l carrying the hollow cylinder is in position on themachine, the two valves 7J occupy the position shown in Fie". el, z'. e.pushed out toward the interior. The springs s are compressed, thegaskets fu are strongly pressed against each other to form a tight jointand besides a communication is established between the passage n and thespace o by the apertures Q and the interior of the valves p whichtogether form a passage open at bothends. JAny other valve systemproducing the same result may be used.

Vhen it is desired to change the block or plate, the sleeve Z is removedfrom the machine. The valves 79 are at once pushed toward the outside bytheir respective springs s, the fittings t or the conical joints of eachof them are pressed against the respective seats u and the apertures gare closed by the fact of their engaging with the passages carrying thevalves. In these conditions not only is communication cut olf between aand o but further the passage n and the space 0 are individually andautomatically closed by the sole fact of the removal of the sleeve CZfrom the head h.. Thus any escape of ink either from the passage a orfrom the space o is automatically precluded.

When the sleeve CZ is put into position again with a new cylinder on,the communication between o and n is restablished automatically. Inorder to allow the removal of the cylinders a from the machine, thelatter comprises laterally a supplementary frame 2 distant from part lof the machine frame by a distance at least equal to one of thecylinders a. Spindles 3 and 4 prolong up -to the frame 2 the axes of therolls or drums to which they are attached by an arrangement which willallow their removal in order to allow the removal of the cylinders awhile leaving in position the axes of the drums properly-so called. Thesupporting blocks 5 and (i will be arranged accordingly.

The invention applies to any impression by porosity. The machines maytherefore be conceived not only under the rotary form but also underanyrother forms and particir larly as fiat machines. l

The cylinders carrying the blocks or plates such as a may be placed withseveral of themaround the same cylinder which serves to support thestrip to be printed so as for example to be able to'male successively onthe saine strip several impressions, superposed or juxtaposed.

What we claim is:

l. ln a device of therclass described, a rotary member; means forfeeding inlr under pressure to said rotary member; a roller removablyassociated with said rotary member and having means whereby it isconstrained to rotate with said member, said roller comprising anexterior lateral layer of comparatively non-porous material forming aprinting surface with apertures therein; a layer of porous materialbeneath said non-porous layer wherethrough the ink is fed to theapertured printing surface, said roller being hollow beneath said porouslayer and thereby forming an inlr container therein, said roller andsaid rotating member having registering passageways; and valvespositioned in said passageways whereby the ink flows from said rotatingmember to said roller to the exclusion of air and whereby the fiow iscontrolled.

2. In a device of the class described, a hollow cylinder of porousmaterial; a shell of comparatively non-porous material fixed u on thecylinder and applied by electro-deposition, the said shell formingV aprinting surface thereon, said shell being apertured where said printingsurface lis formed; means for moving the cylinder; means for feeding inkinto said hollow cylinder during i its movement under a pressure such asto cause the ink to flow tothe printing surface through the pores of thematerial of the cylinder and hence through the apertures of j ,j

the shell.

3. In a machine of the class described, a rotary inker comprising aporous-cylinder and a sleeve carrying the same and forming between theman ink space, a drum on which the rotary inker is adapted to be mounted,

the drum having a head provided with an ink passage, the said headserving as a stop for the sleeve when the cylinder and sleeve are inworking position, and a device for establishing automatically acommunication between the ink space ofthe rotary inher and the said inkpassage and consisting of two lantern valves opposed to each other andmounted to slide in passages arranged respectively, the one in the saidsleeve and the other in the head of the drum, the said valves beingmoved inward in their respective passages, when the cylinder and itssupporting sleeve are in position, to establish the desiredcommunication, and springs for moving the said valves outward to seatthe same and interrupt the said communication when the cylinder and itssupporting sleeve are not in working position.

4. In a rotary machine of the class described, a drum having an axis,porous cylinders which carry the blocks or plates, and means formounting the porous cylinders, comprising a sleeve itted onto the aXisof the drum, the said sleeve carrying at its ends rims on which rest theporous cylinder, thereby forming an annular ink space between the sleeveand the cylinder.

In testimony whereof we have hereunto placed our hands, at Paris,France, this 24th day of September 1913.

JEAN CARRELET. LAURENT DICK DE LONLAY.

In the presence of two witnesses:

HANsoN C. CoXE, HENRY SCHWARTZ.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

